SRv6 Network Programming
draft-ietf-spring-srv6-network-programming-19
| The information below is for an old version of the document | |||
|---|---|---|---|
| Document | Type | Active Internet-Draft (spring WG) | |
| Authors | Clarence Filsfils , Pablo Camarillo , John Leddy , Daniel Voyer , Satoru Matsushima , Zhenbin Li | ||
| Last updated | 2020-09-18 (latest revision 2020-08-27) | ||
| Replaces | draft-filsfils-spring-srv6-network-programming | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | pdf htmlized (tools) htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Joel Halpern | ||
| Shepherd write-up | Show (last changed 2020-06-28) | ||
| IESG | IESG state | IESG Evaluation | |
| Consensus Boilerplate | Yes | ||
| Telechat date |
Has enough positions to pass. |
||
| Responsible AD | Martin Vigoureux | ||
| Send notices to | Bruno Decraene <bruno.decraene@orange.com>, Joel Halpern <jmh@joelhalpern.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
SPRING C. Filsfils, Ed.
Internet-Draft P. Camarillo, Ed.
Intended status: Standards Track Cisco Systems, Inc.
Expires: March 22, 2021 J. Leddy
Individual Contributor
D. Voyer
Bell Canada
S. Matsushima
SoftBank
Z. Li
Huawei Technologies
September 18, 2020
SRv6 Network Programming
draft-ietf-spring-srv6-network-programming-19
Abstract
The SRv6 Network Programming framework enables a network operator or
an application to specify a packet processing program by encoding a
sequence of instructions in the IPv6 packet header.
Each instruction is implemented on one or several nodes in the
network and identified by an SRv6 Segment Identifier in the packet.
This document defines the SRv6 Network Programming concept and
specifies the base set of SRv6 behaviors that enables the creation of
interoperable overlays with underlay optimization (Service Level
Agreements).
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 22, 2021.
Filsfils, et al. Expires March 22, 2021 [Page 1]
Internet-Draft SRv6 Network Programming September 2020
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
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include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Requirements Language . . . . . . . . . . . . . . . . . . 5
3. SRv6 SID . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. SID Format . . . . . . . . . . . . . . . . . . . . . . . 6
3.2. SID Allocation within an SR domain . . . . . . . . . . . 7
3.3. SID Reachability . . . . . . . . . . . . . . . . . . . . 9
4. SR Endpoint Behaviors . . . . . . . . . . . . . . . . . . . . 10
4.1. End: Endpoint . . . . . . . . . . . . . . . . . . . . . . 12
4.1.1. Upper-Layer Header . . . . . . . . . . . . . . . . . 12
4.2. End.X: Layer-3 Cross-Connect . . . . . . . . . . . . . . 13
4.3. End.T: Specific IPv6 Table Lookup . . . . . . . . . . . . 14
4.4. End.DX6: Decapsulation and IPv6 Cross-Connect . . . . . . 14
4.5. End.DX4: Decapsulation and IPv4 Cross-Connect . . . . . . 15
4.6. End.DT6: Decapsulation and Specific IPv6 Table Lookup . . 16
4.7. End.DT4: Decapsulation and Specific IPv4 Table Lookup . . 17
4.8. End.DT46: Decapsulation and Specific IP Table Lookup . . 18
4.9. End.DX2: Decapsulation and L2 Cross-Connect . . . . . . . 19
4.10. End.DX2V: Decapsulation and VLAN L2 Table Lookup . . . . 20
4.11. End.DT2U: Decapsulation and Unicast MAC L2 Table Lookup . 20
4.12. End.DT2M: Decapsulation and L2 Table Flooding . . . . . . 21
4.13. End.B6.Encaps: Endpoint Bound to an SRv6 Policy w/ Encaps 22
4.14. End.B6.Encaps.Red: End.B6.Encaps with Reduced SRH . . . . 24
4.15. End.BM: Endpoint Bound to an SR-MPLS Policy . . . . . . . 24
4.16. Flavors . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.16.1. PSP: Penultimate Segment Pop of the SRH . . . . . . 25
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